Abrading-machine.



No. 672,5" Patented Apr. 23, I901. J. M. NASH.

ABRADING MACHINE. (N0 keen). (Applicatibn filed Aug. 11, 1900.

3 Sheets-Sheet I.

THE nafimgwzrms co. PNOYO-UTHO WASHINGTON. a. c

No. 672,5"; Patented Apr. 23, I90.

J. M. NASH. ABRADING MACHINE.

(Applicatiop filed Aug. 11, 1900.)

3 Sheets-Sheet 2.

(No Model.)

rm: ucnms PETERS CO..-PHOTO-LITHO., 'wunmurou. n. c

No. 672,5". Patented Apr. 23, lsol J. m. NASH.

ABRADING MACHINE.

' (Application filed Aug. 11. 1900.1 (No Model.) 3 Sheets-Sheet 3.

ATENT FFICE.

JOHN M. NASH, OF MILWAUKEE, WISCONSIN.

ABRAD ING- MACHINE.

SPECIFICATION formingpart of Letters Patent N 0. 672,51 1, dated April 23, 1901.

Application filed August 11, 1900- Serial No. 26,568. (No model.)

To all whom it may concern: j j Be it known that 1, JOHN M. NASH, a cite zen f the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin,haveinvented certain new and useful Improvements in Abrading-Machines; and I do hereby declare that the fol- 'lowing is a full,clear, and exact description thereof. i j I My invention has for its object to improve the machine set forth in my Patent No. 1 430,398, of June 17, 1890; and it consists in certain peculiarities of construction and combination of parts hereinafter specified with reference to the accompanying drawings and j -subsequently claimed. I U i Figure 1 of the drawings represents a partly sectional front elevation of my improved ma chine; Fig. 2, a detail sectional elevation illustrating a counterbalanced carrier, one. end of a rotary drum, and mechanism in connection with the drum, Fig. 3, an endview of: a rotary drum and parts in connection. therewith,partly broken; Fig. 4:, a detail sectional view indicated by lines 4 4 in the preceding figure; Fig. 5,-a detail partly-sectional View indicated byline 5 5 in the third figure of the series; Fig. 6, a similar view indicated by lines 6 6 in said third figure, and Fig.7 a detail View illustrating the carrier-lever and I an adjustable stop for same.

. Referring by letter to the drawings, A indicates a hollowstandard, and B a table surmounting thestandard. Opposite brackets O O are bolted to the table transversely of i the same, and in order that the distance between thesebrackets and parts in connection therewith maybe varied the bolts b, in con- Q nection with bracket 0, are adjustable in 3 slots longitudinally of said table. It is within. I the scope of my invention to have both brack- I ets and parts in connection therewith adjustable on the table. Bolted to each bracket is an offset flangelug of a disk D, having an inwardly-extended sleeve 0, engaged by a tubular hub 01 of a head E, having a flange d, that overlaps the periphery of said disk,tlie head with its hub and flange constitutinga rotary druinthat is held in working position by means of a collar 6, fast on the outerend of said hub against Worms t' on the outer end of theshafts F mesh with worm-pinionsj on other shafts H,

supported in brackets Lthat swingonthebear- 'ings 1h, constituting parts of brackets G aforesaid. Portions of the brackets I are made to of one of the bearings for each shaft I-ll being made flush with an opposing projection 10 of incase the worm-gearing, and these brackets are provided with lugs 7c, opposedby guides m, bolted to the drumheads, an enlargement n the adjacent drulnhead and a plate J, bolted head at the extremities of said projection.

Opposing concave feed-rollers K are arranged on the shafts H, and spiral springs L connect hooks r of the brackets I with bolts 8, that extend through druinhead-lugs t, nuts 21. being run on the bolts against said lugs to tension the springs. In the present machine the feed-rollers are faced with cushions o, of

to twin. studs (1, extending from said drumrubber or other elastic material,and these rollers are arranged in pairs adjacent to the hubapertures of the drumheads.

Like in my former patent each drumheadhub d is provided with an inner annular shoulder that forms a stop for a bushing M, having an annular groove. In-the present machine the bushing-groove is engaged by the point of a binding-screw N, for which clearance is provided in the outer side of the adjacent drumhead, the head of said screw being adjacent to the periphery of the drum, convenient for the application of a socket- Wrench, as is best shown in Fig. 3. By the construction just described the bushings are detachably retained in working position, it being intended that each machine shall be accompanied by several sets of bushings having bores of various diameter to accommodate stufi of varying thickness, and it is preferable to have the mouth of each bushing funnelshaped in order that the material passing through the same may not be impeded inits 1 travel.

The rotary drums are to be driven by belts or otherwise, their rotation causing the pinions g to travel around the toothed portipns of the stationary disk-sleeves c to impart rotary motionto the shafts F, this motion bein g com municatedby the worm-gearin g tothe shafts carrying the feed -rollers, whereby these rollers have planetary movement, and stuff run through the machine is kept -constantly turning. p I

The plates J, carriedby one of the drums, have funnel-section extremities J, that facilitate the proper feed of the stuff, especially in case any of this stuff is crooked.

In pivotal connection with the standard A is a frameP, constituting a carrier fora shaft R, upon which to mount an abrading-head or 7 clearly shown in Fig. 1,

an abrading belt-pulley, as may be most convenient, and a link S con meets the frame with a crank T on oneend'of a shaft U, for which said standard-is'provided with bearings, as is and the width of the abrader the bracket and parts in connection therewith are ad j'ustedplongitudinally of the machine-table: Fast-on the other-endof'shaft Uisfa hand lever V, provided with a reciprocative'latch wyguided in a lug a: upon the inside'of said leveigthis latch being engageable with a r'ack y on the adjacent shaft-bearin'g' to hold the carrier in normal position. 'A- lug z, extended above therack, is engaged bya stop-screw W in opposition to the lever-lug,whereby the working throw of the carrier is regulated 'to vary pressure of, the abrading device (not shown) on the'work'.

' Supported ona pulley X, mounted inside of standard A, is a runner Y, that connects with carrier P, and a counterweight Z is suspended from the runner, this counterweight operat-- ing to hold ithe abrader in yielding contact with the work when said carrier is swung toward the feed mechanism above specified. I In the operation of the machine an ornamental spindle or other round'work is started through the bushing M of the drum at the lever end of the machine and caught between the adjacent pair of feed-rollers K, that are held in yieldingfrictional contact with the work by the power of the springs L' exerted on the spring-brackets I, the yield being in proportion to varying thickness of the work. 7

against the abrader.

In accordance with thelength "of'the-rn'aterial to be operatednpon site the one at which the operation began, and said work is thus traveled its entire length Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. The combinationwith the spring-controlled oscillative feed-rollers and means for imparting planetary motion thereto, of a pivotal lever-controlled carrier by which to bring an abrader in and out of contact with material traveled by the rollers.

2. The combination with the'spring-controlled oscillative cushion-faced feed-rollers and means for imparting planetary motion thereto, of pivotal lever-controlled counterweighted carrier by which to bring an abrader in and out of yielding contact with material traveled by the rollers.

3.,The combination with the spring-con trolled oscillative 'feed-rollers'and means for imparting planetary motion thereto, of a pivotal lever-controlled carrier by whichto bring i an abrader in and out of contact with materialjtraveled by the rollers, and=means"for varying working throw of the carrier.

1 4E. The combination with the spring-controlled-oscillative feed-rollers andmeans'for impartingplanetarymotiorrthereto, of apivotal lever-controlled carrier bywhi'chto'bring an abrader inand out of contact with mate rial traveled by the rollers, a lug on the lever, and a stop-scfrew adjustable'in opposition to the lug to limit working; throw of-the'carrier.

The combination" with the sp-ring-' controlled oscillative feed-rollers an'dmeansfor imparting planetary motion'thereto, ofa pivotal lever-controlled carrier by which to bring an'abrader in and out of contact with mate rial traveled'by therollers, a log on the lever, a lever-latch reciprocative inthe lug, astation-ary'rack for engagement of the latch, and alug-opposing stop-screw adjustable inan I extension of the rack.

6'. The-combination of th'e'stationary sleeves provided with circular series ofspurgear teeth, the rotary drums having hollow hubs engaging said sleeves, feed rollers carried by shafts in spring-controlled oscillative bearings on the drums, other shafts carried-by said drumsinworm-gearconnection with the rollershafts, spur-pinions on these'other shafts in mesh'with the teethon the aforesaid sleeves, anda pivotal lever-controlled carrier by which to bring an abradcr in'and out of contact with material traveled by the rollers.

engagin g said sleeves, feed-rollers carried by shafts in spring-controlled oscillative bearings on the drums,other shafts carried by said drumsin worm-gear connection with the'rollershafts, spur-pinions on these other shafts in mesh with the teeth onthe aforesaid sleeves,

funnel-section guides adjacent to one set of feed-rollers, and a pivotal lever-controlled carrier by which to bring an abrader in and out of contact with material traveled by said rollers.

8. The combination of the stationary sleeves provided with circular series of spurgear teeth, the rotary drums having hollow hubs engaging said sleeves, annularly grooved bushings engaging the drum-hubs, bindingscrews arranged in the drumheads to engage the bushing-grooves and have their heads adjacent to the periphery of said drums, feedrollers carried by shafts in spring-controlled oscillative hearings on the drums, other shafts carried by said drums in worm-gear connection with the roller-shafts, and spur-pinions on these othershafts in mesh with the teeth on the aforesaid sleeves.

9. The combination of the rotary drums one at least of which has adjustable connection with a table,spring-con trolled oscillative feedrollers carried by the drums, means for imparting planetary motion to the rollers, and

a pivotal lever-controlled carrier by which to bring an abrader in and out of contact with material traveled by the rollers.

10.. The combination of the hollow standard, the table thereon, the rotary drums in connection with supports mounted on the table, the spring-controlled oscillative feed-rollers carried by said drums, means for imparting planetary motion to the rollers, the lever-controlled carrier in pivotal connection with the standard, a pulley mounted in said standard, a counterweight, and a pulley-supported runner connecting the carrier and counterweight.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.

JOHN M. NASH. 

